Boxing vs MMA (now before you say this whole thing is over done, hear me out)?

MMA is not a style. It is a mix of styles. It depends on the fighter. If a Mixed Martial Artist fought against a Boxer, they would have the huge advantage of being trained in multiple fighting disciplines. But if the boxer is very well trained, then he/she could win the fight. All the do is punch, so if they time their punches well, then they probably would win. MMA fighters usually do some kind of kickboxing so they have more targets than a boxer, such as leg kicks. If the MMA fighter was smart, they wouldn't go and try to out-punch a seasoned boxer. They're probably attack the legs, or try to go to the ground where they have the advantage.